Fix code smells

[abitmore]

In addition to code smell fixes, this PR contains improvements:

• Simplify help info in cli_wallet
  • Removed const, &, std:: and less<> from help info for simplicity (only if Doxygen is found at build time)
• Extend transaction_handle_type to 32 bits and handle overflow
  • Some 3rd-party applications (e.g. price feed scripts) may use the transaction builder functionality provided by cli_wallet without calling remove_builder_transaction, which may experience transaction handle overflow issues when running for a long time

[sonarcloud[bot]]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
18 Code Smells

65.8% Coverage
0.0% Duplication